THE INFLUENCE OF THE PRECEDING CHEMICAL-REACTION UPON THE HYDROGEN ELECTRODE-REACTION IN MOLTEN ETHYLAMMONIUM CHLORIDE

The impedance spectra of the hydrogen electrode reaction (HER) as a fu nction of potential at several temperatures in pure molten ethylammoni um chloride (EACl) were recorded. The recorded impedance spectra were worked out using an equivalent circuit approach and the theory of impe dance of a quasi reversible electrode process preceded by a chemical ( dissociation) reaction. This allows for the determination of the excha nge current density, its activation energy, diffusion coefficient of t he hydrogen cation and the forward and backward rate constants of the preceding dissociation of the ethylammonium cation.